Respiration

Cards (29)

  • What is the process of respiration primarily about?
    Transferring energy from glucose
  • Why is respiration not the same as breathing?
    Respiration is energy transfer, not breathing
  • In which organisms does respiration occur?
    Nearly all living organisms
  • What is ATP used for in cells?
    To store energy for cell processes
  • What type of reaction is respiration?
    Exothermic reaction
  • What is released as a byproduct of respiration?
    Heat energy
  • Can organisms use substances other than glucose for respiration?
    Yes, they can use other biological molecules
  • What is the term for the molecule broken down in respiration?
    Substrate
  • What are the two types of respiration?
    • Aerobic respiration
    • Anaerobic respiration
  • What does "aerobic" mean?
    With oxygen
  • What is produced during aerobic respiration?
    Lots of ATP, specifically 32 molecules
  • What is the equation for aerobic respiration?
    glucose + oxygencarbon dioxide + water
  • How many ATP molecules are produced in aerobic respiration?
    32 ATP molecules
  • What does "anaerobic" mean?
    Without oxygen
  • How much energy does anaerobic respiration transfer per glucose molecule?
    Just 2 molecules of ATP
  • What is produced during anaerobic respiration in animals?
    Lactic acid
  • What is the word equation for anaerobic respiration in animals?
    glucose → lactic acid
  • What do plants produce during anaerobic respiration?
    Ethanol and carbon dioxide
  • What is the word equation for anaerobic respiration in plants?
    glucose → ethanol + carbon dioxide
  • Compare aerobic and anaerobic respiration.
    • Aerobic:
    • Oxygen present
    • Produces 32 ATP
    • Products: CO₂ and water
    • Anaerobic:
    • Not enough oxygen present
    • Produces 2 ATP
    • Products: Lactic acid (animals) or ethanol + CO₂ (plants)
  • Why is aerobic respiration generally better for organisms?
    It produces more energy (ATP)
  • What is the energy transferred per molecule of glucose in aerobic respiration?
    Lots of energy (32 ATP)
  • What is the energy transferred per molecule of glucose in anaerobic respiration?
    2 ATP made
  • What are the products of anaerobic respiration in plants?
    Ethanol and carbon dioxide
  • Why do muscles switch to anaerobic respiration during intense exercise?
    They can't get enough oxygen
  • What happens to lactic acid produced in muscles?
    It can cause fatigue
  • What is a common condition that leads to anaerobic respiration in plants?
    Waterlogged soil
  • What type of respiration do yeasts perform?
    Anaerobic respiration
  • What is the significance of anaerobic respiration in yeast?
    It produces ethanol for fermentation